Opisthokonta Cavalier-Smith 1987, nom. cl. inval. see Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020]
   Holozoa Lang, O'Kelly, Nerad, Gray & Burger 2002 [Adl et al. 2012] see Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
     1 Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
     2 Choanoflagellata see Phylum Choanoflagellata Kent, 1880
     3 Mesomycetozoea see Class Mesomycetozoea Ajello & Mendoza, 2000